Improvement in stanchions



Z. W, SMITH.

STANCHION.

No. 192,456. A Patented June 26,1877.

ATTORNEYS.

N. PETERS. PHOTU UTMOGRAPHER| WSHNGTON- D c- PATENT raten.

ZALMON W. SMITH, OF ADDISON, NEW YORK.

IMPROVEMENT IN STANCHINS.

Specification forming part of Letters Patent No. 192,466, dated June 26,1877; application led April 2, 1871.

To all whom t may concern:

Be it known that I, ZALMON W. SMITH, of Addison, in the county ofSteuben and State ct' New York, have invented a new and useful ImprovedStanchion, of which the following is a specification:

In the accompanying drawings, Figure l represents a front elevation ofmy improved stanehion; and Fig. 2, a horizontal section of the same online a; w, Fig. 1i

Similar letters ot' reference indicate correspending parts.

The invention will iirst be described in connection with thedrawing, andthen pointed out in the claims.

In the drawing, A represents a stanchion ot suitable height and width,that turns on central top and bottom pivots a of a top crosspiece andthetloorin g, which pivots extend in to socket-holes otthe top andbottom crosspieces B ot' the stanchion. lhe lower cross-piece B issupported on a lock-iron orl set-screw, 1 which projects into a grooveof the lower pivot a, which groove is not extended entirely around thecircumference ot' the pivot, as shown in Fig. 2, so as to admit only theturning ot the stanchicn into suitable inclination to either side,sufficient to admit ot free side and up-and-down motion of the head ofthe cow.

AOne ot' the upright side pieces of the stanchion is made of twosections, C U', ot' which the longer section, C, extends from the lowercross-piece B to the upper one, being pivoted,

. to the recessed end ot' the ylower cross-piece,

and retained in the recessed end of the upper cross-piece B by theshorter top sectionC, that is pivoted to the top cross-piece.

rihe section C bears ou the outer side of the longer section 0, and islocked thereto by a weighted link, d, that moves loosely in a slot, d',at the upper end ot' section C, being retained by a cross-pin, c, inslot d. The link slides readily over the shorter section, C', whenplaced alongside of the'longer section, as shown in Fig. 1, and locksthe upper section C to the longer section C by a latch, f, that slides'in an inclined slot, f1, and is retained so as to project to a certainlength by a stop-pin, f2.

By sliding the latch back and swinging the link upward the longersection may be swung, in connection with the shorter section, intooutward position, as shown in dotted lines in Fig. 1, so as to releasethe head ofthe cow by the enlarged space between the sides. For closingthe stanchiou the longer section C is pushed inwardly, which producesthe automatic closing down ot' the upper section, the dropping of thelink, and -sliding forward of the latch, so as to produce the automaticand quick locking ot' the stanchion.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. The combination, with the screw b, ofthe lowerstanchicn-pivot, provided with circumjacent arc recess, as and for thepurpose dcscribed.

2. The combination, with pivoted sections C C', ofthe weighted link d,working in slot d', the latch f, slidingin theinclined slot f1, and thestop-piu f2, as and for the purpose speci tied.-

ZALMON W. SMITH. Witnesses:

CEAS. W. LEE, F. D YOUNG.

